OOO archive --- DEF CON CTF [ login ]

dc2021q - tiamat reversing

by trickE

This was a jeopardy challenge, part of dc2021q.

This challenge was represented as 🐉
Points: 315
Was solved by: 6 teams

You may spawn the server:

On your laptop
  • Install docker
  • docker pull archiveooo/pub:tiamat (docker-saved download)
  • docker run -d --name tiamat archiveooo/pub:tiamat
  • Local IP: docker inspect tiamat -f '{{ .NetworkSettings.Networks.bridge.IPAddress }}'
  • Connect to that IP:5000 — Remember to docker rm -f when done.
On your laptop (full source)
  • Install docker and pip install PyYAML coloredlogs
  • git clone (notice below)
  • cd tiamat
  • ./spawner --log-level=INFO
  • Connect to the ip:port displayed
Hosted by OOO Right now we're asking players to login first.


Protovision just launched their new licensing server yesterday and the sysop over at Pirate's Harbor BBS already has a copy. You should download it and try to be the first one to hack it.

line_weight Dockerfile line_weight service.conf line_weight wrapper line_weight liccheck.bin line_weight qemooo line_weight games line_weight banner_fail


None yet :(
If you wish, you can contribute some.


Spoilers ahead! Code for this challenge is publicly available. Also see the branches of